300-320 · Question #693
What should be taken into consideration when leveraging a dual-router edge design? (Select three.)
The correct answer is B. Additional transit network component that is required for proper routing in certain scenarios C. Run a routing protocol internally within the remote site D. Leverage a FHRP between the routers. In a dual-router edge design, three key considerations apply. (B) An additional transit network component-typically a Layer 2 switch connecting the two routers-is required to facilitate inter-router communication and proper routing in scenarios like return-traffic symmetry. (C)…
Question
What should be taken into consideration when leveraging a dual-router edge design? (Select three.)
Options
- ATypes of routers deployed
- BAdditional transit network component that is required for proper routing in certain scenarios
- CRun a routing protocol internally within the remote site
- DLeverage a FHRP between the routers
- EIPSLA between the routers
How the community answered
(59 responses)- A17% (10)
- B75% (44)
- E8% (5)
Explanation
In a dual-router edge design, three key considerations apply. (B) An additional transit network component-typically a Layer 2 switch connecting the two routers-is required to facilitate inter-router communication and proper routing in scenarios like return-traffic symmetry. (C) Running an interior routing protocol (e.g., EIGRP or OSPF) between the two edge routers allows them to exchange reachability information for the LAN and WAN prefixes. (D) A First Hop Redundancy Protocol (FHRP) such as HSRP or VRRP provides gateway redundancy so that LAN hosts always have a reachable default gateway even if one router fails. The type of router hardware (A) and IP SLA between routers (E) are not primary design requirements for dual-router edge architecture.
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